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Fractal growth of copper electrodeposits


Black dendritic growths of copper were electrodeposited in steady-state diffusion-limited conditions onto an initially point-like cathode. Their spatial extent R was inferred from the increased current and their mass M from the total charge transferred. Fractal behaviour MRD was observed with D = 2.43 ±0.03, in good agreement with computer simulations of diffusion-limited aggregation.

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Brady, R., Ball, R. Fractal growth of copper electrodeposits. Nature 309, 225–229 (1984).

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